CN103452473B - One utilizes tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method - Google Patents
One utilizes tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method Download PDFInfo
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- CN103452473B CN103452473B CN201310362469.5A CN201310362469A CN103452473B CN 103452473 B CN103452473 B CN 103452473B CN 201310362469 A CN201310362469 A CN 201310362469A CN 103452473 B CN103452473 B CN 103452473B
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Abstract
The invention discloses a kind of small-diameter deep well construction method utilizing tunneling boring high counterweight drill bit.Comprise the following steps: (1) deep-well covering layer is holed; Adopt slewing drilling machine reverse circulation bore process, rock bit or gear wheel combined drill pore-forming complete tectal pore-forming; (2) borehole wall sleeve pipe is laid and support with backfilling.Carry out protection casing according to designing requirement to lay and grout filling slip casting after wall; (3) processing and fabricating minor diameter deep-well tunneling boring high counterweight drill bit device; (4) adopt tunneling boring high counterweight drill bit device rock section to creep into, complete into well.Utilize special gear wheel cloth knife structure to make brokenly rock roller cone cutter tool there is no relative displacement along hole wall, be conducive to hole wall and stablize, improve the reliability of pore-forming; The tower drilling tool structure that diminishes gradually of diameter and weight from bottom to top, be equipped with pressure reducing mode, the clear hole drill of reacting cycle proceeds to projected depth, the center of gravity of drilling tool is positioned at bit body immediate vicinity all the time, and the verticality of wellhole is effectively controlled.
Description
Technical field
The method, particularly one that the present invention relates to a kind of small-diameter deep well construction utilize tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method, belong to mine and municipal engineering construction technical field.
Background technology
Minor diameter deep-well (hole diameter 1.0 ~ 1.5m, well depth are greater than 300m) in vertical shaft for mine is generally be embodied as well by traditional machine drilling mode, becomes well quality very large by the impact of formation condition and drilling tool equipment.In current To Construction of Silo, drill bit used is generally conventional roller cone drill bit or roller cutter bit, just according to broken rock size, the gear wheel of some or hobboing cutter being arranged is welded on bit body, often the location arrangements of gear wheel or hobboing cutter is unreasonable, when occur caving ground especially hard-soft heterogeneous ground time, drill bit is easy to, because of unbalance stress, deflection occurs, and causes pore-forming deflection, affects construction quality.
Summary of the invention
The object of the present invention is to provide one to utilize tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method, solve vertical shaft for mine and become the problem that hole deviation easily occurs in well process, ensure the verticality that deep-well creeps into, improve pore-forming efficiency.
The object of the present invention is achieved like this: one utilizes tunneling boring high counterweight drill bit device to carry out directly little
Footpath deep-well construction method, comprises the following steps:
(1) deep-well covering layer boring
Adopt conventional slewing drilling machine reverse circulation bore process, conventional roller cone drill bit or gear wheel combined drill pore-forming, it is poor that chemical slurry stablizes external water pressure in the boring of hole wall peace weighing apparatus, completes tectal pore-forming;
(2) borehole wall sleeve pipe is laid and support with backfilling
After covering layer has been holed, carry out protection casing lay and grout filling slip casting after wall according to designing requirement, cement paste adopts portland slag cement or Portland cement;
(3) processing and fabricating minor diameter deep-well tunneling boring high counterweight drill bit device
Tunneling boring high counterweight drill bit device is made up of the tower way-type drilling unit of tunneling boring gear wheel combined drill and high counterweight, according to geo-logical terrain condition, be combined into well diameter, on tunneling boring gear wheel combined drill body cutterhead, point two circles evenly arrange and weld gear wheel lobe, wherein, the gear wheel that outer ring is evenly arranged is higher than inner ring gear wheel, in after bit body reserves the mouth of a river, note is plumbous increases deadweight, by flange with lower balance weight body, upper balance weight body, drill collar connects, balance weight body and drill collar all weld correcting body, lower balance weight body diameter is less than bit body diameter 100 ~ 200mm, upper balance weight body diameter is less than lower balance weight body diameter 100 ~ 200mm, lower balance weight body weight overweights balance weight body, heavily go up light under formation, lower large little tower way-type drilling unit system.The high counterweight drill bit of different-diameter size can be made, to realize classification reaming construction according to actual conditions;
(4) rock section is crept into, and completes into well
Utilize the minor diameter deep-well tunneling boring high counterweight drill bit device made, employing pressure reducing mode creeps into, the 80%(that the pressure of the drill is not more than drill bit and counterweight gross weight deducts mud buoyancy), all the time on plumb line, (effect of plumb bob is similar to) to keep high counterweight drill bit, guide function is remarkable, guarantees borehole perpendicularity.
The present invention is specially adapted to diameter 0.8 ~ 1.5m small-diameter deep well construction.
The beneficial effect that the present invention obtains is:
1, the present invention is directed to Different Strata and select different drill bits, upper cover layer uses conventional roller cone drill bit or gear wheel combined drill, and bottom basement rock adopts the tunneling boring high counterweight drill bit device made to creep into, and has given full play to respective feature; The making of tunneling boring high counterweight drill bit device is simple, with low cost, easy to use, operating efficiency is high;
2, tunneling boring high counterweight drill bit device breaks rock roller cone cutter tool does not have relative displacement along hole wall operation, and be conducive to hole wall and stablize, classification reaming, front guide hole plays guide effect, improves into hole perpendicularity, and the gradient of drilling well can be controlled within 3 ‰.
The present invention has expanded the construction method that mine minor diameter deep-well creeps into into well.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of minor diameter deep-well tunneling boring high counterweight drill bit device.
Fig. 2 is gear wheel combined drill structural representation.
The implication of number in the figure representative is as follows:
1, gear wheel 2, gear wheel combined drill body 3, flange 4, lower balance weight body 5, correcting body 6, upper balance weight body 7, drill collar 8, inner ring gear wheel 9, outer ring gear wheel.
Detailed description of the invention
Following examples are for illustration of the present invention.
Embodiment
Under certain building, solid filling exploitation feeds intake well engineering, well depth 616m, be mainly used to ground solid filling material transportation to down-hole, filling is carried out to goaf, feed intake aboveground portion cover-layer section drilling diameter 1200mm, bottom rock section drilling diameter 820mm, transfers wear-resistant pipe and support with backfilling after pore-forming.
Utilize construction method of the present invention, specific implementation process is as follows:
(1) deep-well covering layer boring
Upper cover layer section Φ 1200mm holes, perforate adopts φ 311mm rock bit, drills covering layer and after entering complete basement rock 2m, adopts φ 1200mm to combine rock bit reaming, after being drilled into complete basement rock 1m, employing φ 1200mm, length are that the cylinder of 12m creeps into row circular hole.
(2) protection casing is laid and support with backfilling
Cover-layer section has been holed, and after measuring for verticality meets the requirements, carries out that length is 170m, the laying and grout filling after wall of the protection casing of internal diameter 1020mm, thickness 16mm, and cement paste adopts portland slag cement.
(3) processing and fabricating minor diameter deep-well tunneling boring high counterweight drill bit device
Tunneling boring high counterweight drill bit device is made up of the tower way-type drilling unit of tunneling boring gear wheel combined drill and high counterweight.See Fig. 1, a kind of minor diameter deep-well tunneling boring high counterweight drill bit device, is made up of the tower way-type drilling unit of gear wheel combined drill and high counterweight.Gear wheel 1 evenly arranges and is welded on gear wheel combined drill body 2 cutterhead, and see Fig. 2, wherein outward flange one encloses and evenly arranges 6 gear wheels, and inner ring evenly arranges 6 gear wheels, and Internal and external cycle is totally 12 gear wheels, and outer ring gear wheel 9 exceeds inner ring gear wheel 830mm.Gear wheel combined drill body 2 presets the mouth of a river and plumbous the increasing of filling is within it conducted oneself with dignity.The tower way-type drilling unit of high counterweight comprises the lower balance weight body 4 that gear wheel combined drill body 2 is connected by flange 3, lower balance weight body 4 welds correcting body 5, is connected by flange 3 with upper balance weight body 6, upper balance weight body 6 welds correcting body 5, and is connected with drill collar 7.Lower balance weight body 4 diameter is less than bit body 2 diameter 100 ~ 200mm, upper balance weight body 6 diameter is less than lower balance weight body 4 diameter 100 ~ 200mm, upper balance weight body 6, lower balance weight body 4 are made up of 2 pieces of cylindrical shaped weight blocks respectively, weight is respectively 6t, 8t, forms the tower way-type drilling unit system of tunneling boring high counterweight that diameter from lower to upper diminishes gradually.
(4) rock section is crept into, and completes into well
Carry out rock section after layer protection casing filling water mud to be covered reaches design strength to creep into, for ensureing verticality, accelerating rate of penetration, adopt the tunneling boring high counterweight drill bit device of step (3) processing and fabricating to carry out creeping into into well.After cement slurry sets reaches design strength after casing wall, utilize reverse circulation drilling process, φ 311mm, φ 820mm tunneling boring high counterweight drill bit classification reaming, carry out rock section and become well construction to projected depth.
After boring reaches design hole depth, utilize high accuracy gyroscope inclinometer, prospect hole device to coordinate supersonic reflectoscope to detect boring, hole round and smooth straight, hole diameter meets design requirement, final borehole perpendicularity is less than 3 ‰, finally carries out wear-resistant pipe and transfers and support with backfilling, complete into well.
Claims (1)
1. utilize tunneling boring high counterweight drill bit device to carry out a small-diameter deep well construction method, it is characterized in that comprising the following steps:
(1) deep-well covering layer boring
Adopt conventional slewing drilling machine reverse circulation bore process, conventional roller cone drill bit or gear wheel combined drill pore-forming, it is poor that chemical slurry stablizes external water pressure in the boring of hole wall peace weighing apparatus, completes tectal pore-forming;
(2) borehole wall sleeve pipe is laid and support with backfilling
After covering layer has been holed, carry out protection casing lay and grout filling slip casting after wall according to designing requirement, cement paste adopts portland slag cement or Portland cement;
(3) processing and fabricating minor diameter deep-well tunneling boring high counterweight drill bit device
Tunneling boring high counterweight drill bit device is made up of the tower way-type drilling unit of tunneling boring gear wheel combined drill and high counterweight, on gear wheel combined drill body cutterhead, point two circles evenly arrange and weld gear wheel lobe, wherein, the gear wheel that outer ring is evenly arranged is higher than inner ring gear wheel, in after bit body reserves the mouth of a river, note is plumbous increases deadweight, by flange with lower balance weight body, upper balance weight body, drill collar connects, balance weight body and drill collar all weld correcting body, lower balance weight body diameter 100 ~ 200mm less of bit body diameter, upper balance weight body diameter 100 ~ 200mm less of lower balance weight body diameter, lower balance weight body weight is greater than balance weight body, heavily go up light under formation, lower large little tower way-type drilling unit system,
(4) rock section is crept into, and completes into well
Utilize the minor diameter deep-well tunneling boring high counterweight drill bit device made, employing pressure reducing mode creeps into, the pressure of the drill is not more than 80% of drill bit and counterweight gross weight, to keep high counterweight drill bit all the time on plumb line, guarantee borehole perpendicularity, after boring reaches design hole depth, high accuracy gyroscope inclinometer, prospect hole device is utilized to coordinate supersonic reflectoscope to detect boring, hole diameter meets design requirement, and finally carries out wear-resistant pipe and transfers and support with backfilling, complete into well.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310362469.5A CN103452473B (en) | 2013-08-20 | 2013-08-20 | One utilizes tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method |
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| CN201310362469.5A CN103452473B (en) | 2013-08-20 | 2013-08-20 | One utilizes tunneling boring high counterweight drill bit device to carry out small-diameter deep well construction method |
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| CN103452473B true CN103452473B (en) | 2015-11-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105041197B (en) * | 2015-04-27 | 2017-05-17 | 河北建设勘察研究院有限公司 | Construction method for forming hole in large-diameter shaft hole through reverse circulation in bedrock crushed zone |
| CN109209222B (en) * | 2018-10-26 | 2020-05-26 | 张潇洪 | Drilling process |
| CN118110541B (en) * | 2024-04-30 | 2024-07-12 | 中原工学院 | Surrounding rock reinforcing grouting system for underworkings of metal mines |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934660A (en) * | 1974-07-02 | 1976-01-27 | Nelson Daniel E | Flexpower deep well drill |
| US4126194A (en) * | 1977-07-11 | 1978-11-21 | Smith International, Inc. | Rock bit with extended pickup tube |
| CN87104623A (en) * | 1987-07-01 | 1988-04-20 | 吕亚舜 | Fluid motor-driven antithesis balance oil extractor |
| US6148925A (en) * | 1999-02-12 | 2000-11-21 | Moore; Boyd B. | Method of making a conductive downhole wire line system |
| CN2888067Y (en) * | 2005-11-01 | 2007-04-11 | 任文林 | Pumping unit |
| CN201027493Y (en) * | 2007-05-18 | 2008-02-27 | 唐世杰 | Base cone hob drill head |
| CA2697984A1 (en) * | 2007-09-25 | 2009-04-02 | Crostek Management Corp. | Artificial lift mechanisms |
| CN201671562U (en) * | 2010-03-18 | 2010-12-15 | 中交第三航务工程局有限公司 | Rock-socketed inclined pile construction equipment |
| CA2830959A1 (en) * | 2011-04-08 | 2013-05-16 | Halliburton Energy Services, Inc. | Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
-
2013
- 2013-08-20 CN CN201310362469.5A patent/CN103452473B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934660A (en) * | 1974-07-02 | 1976-01-27 | Nelson Daniel E | Flexpower deep well drill |
| US4126194A (en) * | 1977-07-11 | 1978-11-21 | Smith International, Inc. | Rock bit with extended pickup tube |
| CN87104623A (en) * | 1987-07-01 | 1988-04-20 | 吕亚舜 | Fluid motor-driven antithesis balance oil extractor |
| US6148925A (en) * | 1999-02-12 | 2000-11-21 | Moore; Boyd B. | Method of making a conductive downhole wire line system |
| CN2888067Y (en) * | 2005-11-01 | 2007-04-11 | 任文林 | Pumping unit |
| CN201027493Y (en) * | 2007-05-18 | 2008-02-27 | 唐世杰 | Base cone hob drill head |
| CA2697984A1 (en) * | 2007-09-25 | 2009-04-02 | Crostek Management Corp. | Artificial lift mechanisms |
| CN201671562U (en) * | 2010-03-18 | 2010-12-15 | 中交第三航务工程局有限公司 | Rock-socketed inclined pile construction equipment |
| CA2830959A1 (en) * | 2011-04-08 | 2013-05-16 | Halliburton Energy Services, Inc. | Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
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| CN103452473A (en) | 2013-12-18 |
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Address after: 050200 No. 555, Huaian West Road, Luquan District, Shijiazhuang City, Hebei Province Patentee after: China Hebei Jiankan Group Co.,Ltd. Address before: 050031 No.58 jianhuanan street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI CONSTRUCTION AND INVESTIGATION RESEARCH INSTITUTE Co.,Ltd. |
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